Air purifying device
CA 2397801 A1 · Owner: Castillo Martinez, Manuel · Inventors: Castillo Martinez, Manuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an air purifying device comprising a container (2) , having water inside wherein a perforated end segment (5) of the smoke circulating duct (6) is inserted and submerged in the inner part of said container. Said duct is propelled by a turbine (8) and suctioned by a hood (7) to collect the smoke. The interior of said device also comprises transversal and parallel axles (12), which are provided with blades (13) that are rotated by a transmission formed by pinions (14) and a chain (15) which is connected to the axle pinion (16) of the output of the motor (17).
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.